19649540

素因数分解:

$2^2\times 5^1\times {\mathrm{433}}^1\times {\mathrm{2269}}^1$

素因数の和:2711

約数の個数: 24

約数和(自身を含む): 41377560

約数和(自身を除く): 21728020

約数列:

[1, 2, 4, 5, 10, 20, 433, 866, 1732, 2165, 2269, 4330, 4538, 8660, 9076, 11345, 22690, 45380, 982477, 1964954, 3929908, 4912385, 9824770, 19649540]

約数ペア:

[(1, 19649540), (2, 9824770), (4, 4912385), (5, 3929908), (10, 1964954), (20, 982477), (433, 45380), (866, 22690), (1732, 11345), (2165, 9076), (2269, 8660), (4330, 4538)]